Radial evolution of the accuracy of ballistic solar wind backmapping J.-B. Dakeyo, S. T. Badman, A. P. Rouillard, V. Réville, D. Verscharen, P. Démoulin and M. Maksimovic A&A, 686 (2024) A12 Published online: 24 May 2024 DOI: 10.1051/0004-6361/202348892